The Serpent SER401841 4-hole shock piston is a practical upgrade for Medius X20 MID vehicles that need finer damping control. It helps drivers tune the car for sharper turn-in and steadier exit behaviour across rough or smooth layouts.
The piston is configured for the Medius X20 MID line, and is compatible with parts such as SER400033 and SER400034. Its four-port design offers a controlled oil flow profile, making it easier to tailor damping to different track surfaces and driving techniques.
Installation is simple for anyone comfortable with basic shock servicing. Because it matches Medius X20 MID dimensions, the piston requires only minor adjustments to existing shock assemblies, letting you test changes quickly between runs.
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